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Dell™ Latitude™ XT2 Service Manual 



Tablet-PC Features 
Working on Your Tablet-PC 
Adding and Replacing Parts 
Specifications 
Diagnostics 
System BIOS 



Notes, Cautions, and Warnings 

IEj NOTE: A NOTE indicates important information that helps you make better use of your computer. 

/\ CAUTI ON: A CAUTI ON indicates potential damage to hardware or loss of data if instructions are not followed. 

/;\ WARNI NG: A WARNI NG indicates a potential for property damage, personal injury, or death. 

If you purchased a Dell™ n Series computer, any references in this document to Microsoft® Windows® operating systems are not applicable. 



Information in this document is subject to change without notice. 
© 2009 Dell Inc. All rights reserved. 

Reproduction of this material in any manner whatsoever without the written permission of Dell Inc. is strictly forbidden. 

Trademarks used in this text: Dell, the DELL logo, Latitude, TravelLite, Wi-Fi Catcher, and ExpressCharge, are trademarks of Dell Inc.; Intel, Pentium, Celeron and Core are registered 
trademarks of Intel Corporation; Bluetooth is a registered trademark owned by Bluetooth SIG, Inc. and is used by Dell under license; TouchStrip is a trademark of Zvetco Biometrics, 
LLC; Blu-ray Disc is a trademark of the Blu-ray Disc Association; Microsoft, Windows, Windows Server, MS-DOS, Aero, Windows Vista, and the Windows Vista start button are either 
trademarks or registered trademarks of Microsoft Corporation in the United States and/or other countries. 

Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and names or their products. Dell Inc. disclaims any 
proprietary interest in trademarks and trade names other than its own. 

Model PP12S 

September 2009 Rev. A01 



System BIOS 

Dell™ Latitude™ XT2 Service Manual 

• BIOS Screen Navigation Keystrokes 

• <F12> Menu 

• Boot Menu 

• Entering System Setup 



Your Tablet-PC offers the following system BIOS options: 



Bring up a one-time boot menu by pressing <F12> 
Access the System Setup utility by pressing <F2> 



Bl OS Screen Navigation Keystrokes 

Use the following keystrokes to navigate the BIOS screens. 



Navigation Keystrokes 


Action 


Keystroke 


Expand and collapse field 


<Enter>, left- and right-arrow keys, or +/- 


Expand or collapse all fields 


<> 


Exit BIOS 


<Esc> — Remain in Setup, Save/Exit, Discard/Exit 


Change a setting 


Left- and right-arrow keys 


Select field to change 


<Enter> 


Cancel a modification 


<Esc> 


Reset defaults 


<AltxF> or Load Defaults menu option 



IEj NOTE: Depending on your computer and any installed devices, the items listed in this section may or may not appear. 

<F12> Menu 

Press <F12> when the Dell™ logo appears to initiate a one-time boot menu with a list of the valid boot devices for the system. Diagnostics and Enter Setup 
options are also included in this menu. The devices listed on the boot menu depend on the bootable devices in the system. This menu is useful when you are 
attempting to boot to a particular device or to bring up the diagnostics for the system. Using the boot menu does not make any changes to the boot order 
stored in the BIOS. 

Boot Menu 

Your Tablet-PC features an enhanced one-time boot menu. The enhanced menu features the following improvements: 

i Easier access — Access the menu by pressing <F12> during system boot. 

i User prompting — The missing keystroke is now displayed on the BIOS splash screen. 

i Added diagnostics options — The boot menu now includes two new options: BIOS Setup and Diagnostics. 



Entering System Setup 



Press <F2> to enter System Setup and change the user-definable settings. If you have trouble entering System Setup using this key, press <F2> when the 
keyboard LEDs first flash. 

Follow the on-screen instructions to view and/or change any settings. On each screen, the system setup options are listed at the left. To the right of each 
option is the setting or value for that option. You can change settings that appear as white type on the screen. Options or values that you cannot change 
(because they are determined by your Tablet-PC) appear less bright. 

The upper-right corner of the screen displays help information for the currently highlighted option. The lower-right corner displays information about the 
computer. System setup key functions are listed across the bottom of the screen. 

The system setup screens display the current setup information and settings for your computer, such as: 

System configuration 

Boot order 

Boot (start-up) configuration 

Basic device configuration settings 

System security and hard drive password settings 



Diagnostics 

Dell™ Latitude™ XT2 Service Manual 

• Device Status 

• Battery Status 

• Keyboard Status 

• LED Error Codes 



Device Status LEDs 

Device status LEDs are a good source for diagnosing common problems that may occur on your Tablet-PC. 



(!) 



a 

* 



Turns on when you turn on the Tablet-PC and blinks when the Tablet-PC is in a power management mode. 

Turns on when the Tablet-PC reads or writes data. 

Turns on steadily or blinks to indicate battery charge status. 

Turns on when wireless networking is enabled. 

Turns on when a card with Bluetooth® wireless technology is enabled. To turn off only the Bluetooth 
wireless technology function, right-click the icon in the system tray and select Disable Bluetooth Radio. 



Battery Status 



If the computer is connected to an electrical outlet, the battery light operates as follows: 

Alternately blinking amber light and blue light — An unauthenticated or unsupported, non-Dell AC adapter is attached to your Tablet-PC. 
Alternately blinking amber light with steady blue light — Temporary battery failure with AC adapter present. 
Constantly blinking amber light — Fatal battery failure with AC adapter present. 
Light off — Battery in full charge mode with AC adapter present. 
Blue light on — Battery in charge mode with AC adapter present. 

Battery Charge and Health 

To check the battery charge, press and release the status button on the battery charge gauge to illuminate the charge-level lights. Each light represents 
approximately 20 percent of the total battery charge. For example, if four lights are on, the battery has 80 percent of its charge remaining. If no lights appear, 
the battery has no charge. 

To check the battery health using the charge gauge, press and hold the status button on the battery charge gauge for at least 3 seconds. If no lights appear, 
the battery is in good condition and more than 80 percent of its original charge capacity remains. Each light represents incremental degradation. If five lights 
appear, less than 60 percent of the charge capacity remains, and you should consider replacing the battery. 



Keyboard Status LEDs 



The light located above the function key F4 turns on when the numeric keypad is enabled. 
The light located above the function key F5 turns on when the Scroll Lock function is enabled. 
The light located on the caps lock key turns on when the Caps Lock function is enabled. 

LED Error Codes 



Error Code Appearance 


Description 


Next Step 


Caps 
Lock 


Numeric 
Lock 


Scroll 
Lock 






ON 


FLASH 


FLASH 


No SODIMMs are installed 


1. Install supported memory modules. 

2. If memory is already present, reseat the module(s) one at time in each slot. 

3. Try known good memory from another computer or replace the memory. 

4. Replace the system board. 


FLASH 


ON 


ON 


System board error 


1. Reseat the processor. 

2. Replace the system board. 

3. Replace the processor. 


FLASH 


ON 


FLASH 


LCD Panel Error 


1. Reseat the LCD cable. 

2. Replace the LCD panel. 

3. Replace the video card / system board. 


OFF 


FLASH 


OFF 


Memory compatibility error 


1. Install compatible memory modules. 

2. If two modules are installed remove one and test. Try the other module in the 
same slot and test. Test the other slot with both modules. 

3. Replace the memory. 

4. Replace the system board. 










1. Reseat the memory. 

2. If two modules are installed remove one and test. Try the other module in the 



ON 


FLASH 


ON 


Memory is detected but has errors 


same slot and test. Test the other slot with both modules. 

3. Replace the memory 

4. Replace the system board. 


OFF 


FLASH 


FLASH 


Modem Error 


1. Reseat the modem. 

2. Replace the modem. 

3. Replace the system board. 


FLASH 


FLASH 


OFF 


Option ROM Error 


1. Reseat the device. 

2. Replace the device. 

3. Replace the system board. 


OFF 


ON 


OFF 


Storage device error 


1. Reseat the hard drive and optical drive. 

2. Test the computer with just the hard drive and just the optical drive. 

3. Replace the device that is causing the failure. 

4. Replace the system board. 


FLASH 


FLASH 


ON 


Video card error 


1. Replace the system board. 



Digitizer Options Tab 

Dell™ Latitude™ XT2 Service Manual 

The Digitizer Options tab is used for the following: 

i Input mode selection 

i Touch tuning 

i Launching diagnostics 

i Restoring default settings 

I nput Mode 

The N-trig applet has 4 operating modes: 

i Pen Only — In this mode, the stylus is the only device that can be used as the input device with the N-trig digitizer. Changing from Pen Only mode to 
any other mode is done by clicking with an active input device on the N-trig Applet icon in the system tray. When the applet is open, select desired mode 
and press OK. 

i Touch Only — In Touch Only mode, a single finger is the only input device that can be used with the N-trig digitizer. Using the stylus is not possible. It is 
important to note that only a single hand contact is allowed with the digitizer for proper execution. Changing Touch Only mode into any other mode is 
done by tapping the N-trig Applet icon in System Tray using a finger or other active input device and choosing the desired mode. Press OK to confirm. 

i Auto Mode — The N-Trig digitizer is capable of detecting a stylus as well as finger touch. The purpose of Auto Mode is to allow the user intuitive toggling 
between the Pen Only or Touch Only modes. The default input device for Auto Mode is the stylus as long as it is in range of the tablet screen (hovering 
in proximity or in contact). A basic principle in Auto Mode is that stylus detection in the digitizer proximity would turn the digitizer into Pen Only mode as 
an overriding priority. A double-tap finger gesture on the screen (similar in style to a mouse double-click) will switch the digitizer from Pen Only mode to 
Touch Only mode. The system will remain in Touch Only mode as long as the stylus is out of range. Once the stylus is detected in range the system will 
automatically switch to Pen Only mode. 

i Dual Mode (Vista Only) — Dual Mode is a unique operational mode that is functional only while using the Microsoft Vista operating system. In this 
mode, the OS switches automatically between the available pointing device according to its internal priority and attributes. 



Touch Tuning 



If you believe that the Tablet-PC's finger detection function is not working properly, a recalibration of the touch feature may be in order. To accomplish this click 
the Reset button and then follow the on-screen prompts. 



/\ CAUTI ON: Do NOT touch the screen while touch reset is in progress. 



Touch tuning will begin in 3 seconds 
Please refr.:^ from c c n ; ie screen at this point. 



A message indicating success or failure appears once the reset routine completes. If the result is failure, try running the diagnostics. 



Diagnostics 



Running the diagnostics will help determine the functionality of the digitizer. Start by clicking the Troubleshoot button. Pressing the Self Test button on the 
subsequent pop-up window starts the diagnostics. 



tfjgi N-trig Diagnostics 



I - SM 



Press Self test to begin testing your system. After pressing Selftest r please remove your hands and/or stylus 
from the screen. 

Status: Ready 



Self test ~j Close 



After the test is complete, the results are displayed as illustrated below. 



tftfi N-trig Diagnostics 



I S3 



Press Self test to begin testing your system. After pressing Self test, please remove your hands and/ or stylus 
from the screen. 



I Diagnostics self test result code: 18, 50 r 18 I 
Optimizing performance - screen hardware has been calibrated 



Self test 



Close 



Use this table to define the result codes. 



Digitizer Self Test Result Codes 


Code 


Test 


Error Details 


Symptoms 


7 


A-trigs connectivity 


Digitizer analog 
processor fail 


Digitizer is unable to initialize or read samples from analog processor. No pen or touch position is 
reported. 


11 


Stylus excitation 


No pen excitation 


Signals received during the stylus excitation test are below certain limit. Pen may be not 
functional or detected in tip only. 


14 


Sensor Antenna 
disconnects 


Digitizer grid disconnect 


There are disconnected lines. Pen or touch may be malfunctioning in a specific physical display 
area. 


15 


Sensor Antenna shorts 


Digitizer grid shortcut 


There are shorted lines. Pen or touch may be malfunctioning in a specific physical display area. 


18 


Channel imbalance 


Digitizer channel 
degraded 


There is an unbalanced channel. Pen or touch may be malfunctioning in a specific physical display 
area. 


19 


Capacitor calibration 


Digitizer calibration 
degraded 


The calibration capacitor in a certain channel is set to minimal or maximum value. Pen or touch 
may be malfunctioning in a specific physical display area. 


47 


Internal Firmware 
Error 


Internal Firmware Error 


Firmware resource problem in executing diagnostics. Diagnostics tool is not functional. 


48 


Critical Malfunction 


Device Error 


Critical malfunction was detected, test cannot continue. 


49 


Host Timeout Error 


Host Timeout Error 


Host communication or resources problem in executing diagnostics. 


50 


Capacitor Calibration 
Required 


Hardware calibration is 
required 


Hardware calibration is required to gain maximum performance. 



Tablet- PC Features 

Dell™ Latitude™ XT2 Service Manual 

• Tablet-PC Modes 

• Tablet-PC Buttons 

• Tablet-PC Interface 

• Tablet-PC Settings 

• Tablet-PC Pen 

• Application Matrix 



I nteraction Options Tab 

Dell™ Latitude™ XT2 Service Manual 

The Interaction Options tab controls the visual and sound effects that can modify the user experience while operating the system's various modes. 



i ■ I 



^ N-trig Tablet Settings 



Digitizer Options [ Interaction Options About 



.Auto Mode Switching Graphical Indicator 



jsquare_in.gif 



F71 Pen -> Touch switch 
.Touch -> Pen switch 



Sound Feedback 



l~l Enable Touch Sound Feedback 



Restore defaults j 



Apply 



Auto Mode Switching Graphical Indicator 



This section enables you to select a .gif file (image) to be displayed whenever an auto mode switching event is detected. You can select the event that wil 
cause the graphical indicator to appear: 

i Pen -> Touch: Pen is detected after finger usage, 
i Touch -^ Pen: Touch is detected after pen usage. 

Sound Feedback 



This section enables you to select which .wav file (sound) will be played when the finger touches the screen. The sound can be tested using the play button. 
One can enable/disable this functionality using the specified radio button. 



Application Matrix 

Dell™ Latitude™ XT2 Service Manual 

The following matrix shows the gestures supported by the operating system and specific application software packages. Other applications may also respond 
to these gestures. 



Operating System | Microsoft™ Windows Vista™ | Microsoft Windows™ XP 


Application Family 


Application Name || Pinch/ Zoom || Horizontal Scroll||Vertical Scroll|| Pinch/ Zoom|| Horizontal Scroll || Vertical Scroll| 


Windows 


Explorer | Yes Yes | Yes No | Yes | Yes ] 


Photo Gallery || Yes Yes Yes No | No || No | 


Windows Live 


Photo Gallery || Yes Yes || Yes No || No | No 


Virtual Earth 


II No 11 No (I No 1 No J] No || No | 


Microsoft Office 2007 


Outlook® || Yes || Yes || No || Yes || Yes || No 1 


Word || Yes | Yes || Yes || Yes | Yes |[ No 1 


Excel® || Yes J Yes || Yes || Yes | Yes || No | 


Power Point® || Yes | Yes || Yes || Yes || Yes || Yes | 


One Note® || Yes | Yes )| Yes | Yes || Yes | No | 


Picture Manager || Yes || Yes || Yes || Yes || Yes || Yes 


Microsoft Office 2003 


Outlook® || Yes || Yes || Yes || Yes || Yes || Yes | 


Word J| Yes || Yes || Yes || Yes J| Yes | Yes 1 


Excel® || Yes || Yes || Yes || Yes || Yes || Yes 1 


Power Point® || Yes || Yes || Yes || Yes || Yes || Yes | 


One Note® || Yes || Yes || Yes || Yes || Yes || Yes 1 


Picture Manager || Yes || Yes || Yes || Yes || Yes || Yes 1 


Web Browsers 


Internet Explorer 6® || No || No || No || Yes || Yes || Yes | 


Internet Explorer 7® || Yes || Yes || Yes || Yes || Yes || Yes 


FireFox® || Yes || Yes || Yes || Yes || Yes || Yes | 



Multi-Touch Gestures Feature 

Dell™ Latitude™ XT2 Service Manual 

Gestures 

Gestures are expressions made while touching the screen of your Tablet PC with two fingers. They are interpreted as user commands to the operating system 
or active application software. When the operating system recognizes a gesture, an icon confirming the gesture appears on the screen. This multi-touch 
update includes three gestures: a scroll gesture, a zoom gesture, and a two-finger double-tap gesture. Gesture features and descriptive icons shown herein 
are sourced by N-trig. 

Scroll Gesture 

Placing two fingers on the screen and moving them horizontally or vertically generates scrolling in the direction of movement: right, left, up, or down. 



Zoom Gesture 

Touching the screen with two fingers and moving them together or apart generates a zoom-in or zoom-out command to the screen. 



"# 



i *i 



Two-Fingers Double-Tap Gesture 



Tapping the screen twice with two fingers sends an operating system command that you can configure. It can be used to perform actions, such as turning the 
display off and disabling touch gestures (default), or run an executable program, such as one that opens Internet Explorer. 

x2 



i 



Sensitivity Setup 



To adjust the sensitivity for the two-finger gestures, double-click the N-trig icon ( ■ ) in the system tray, and tap the Multi-Touch Gestures tab. Set the sliders 
for each gesture as desired. 



^ N-trig Pen and Touch Settings I i I 



Digitizer Options Interaction Options : }j\& toiid ^Vires'- About 



General 

171 Enable Multi-Touch Gestures Q Invert Dinection 

W\ Enable Visual Feedback 

Scroll Gesture 

[*71 Enable Placing two fingers on the screen and moving them on the 

horizontal and/or vertical axis will generate scrolling 

Sensitivity Low — High 



[71 Enable Pinching two f ingers together or apart will generate zoom in or 

out respectively 



A 



Sensitivity Low — High 



Two Rngere Double Tap Gesture 

[71 Enable Double tap on the screen using two fingers in order to perform 

the following action 

Action : [ Display Off r] | I [Browse... 



Speed Slow 



Restore defaults 



OK | Cancel 



About Tab 



Dell™ Latitude™ XT2 Service Manual 

The About tab is used to find information such as the driver version and firmware revision numbers. The firmware revision number can also be obtained by 
hovering your pointer over the N-trig Tablet Settings icon in the system tray. 



jatfl N-trig Tablet Settings 




Copyright N4rig" r 155B-2DD7 LUC. 

For more information, visit N-trig at www.n4riq.com 



Version 




Driver version: 


1.23 


Firmware version: 


2.31.10.3.2 



Cancel 



Adding and Replacing Parts 

Dell™ Latitude™ XT2 User's Guide 



Main Battery 

Memory and Mini-Card Cover 

Memory 

Hard Drive 

Mini-Card 

System Board 

Heat Sink and Fan Assembly 

Battery Latch 



Coin-Cell Battery 

Grip Cover 

Display Assembly 

Palm Rest 

Speaker 

Internal Card With Bluetooth® Wireless Technology 

Hinge Cover 

Keyboard 



Tablet- PC Pen 

Dell™ Latitude™ XT2 Service Manual 

• Calibrating the Pen 

• Troubleshooting 




1 


Pen 


2 


Eraser pen button 


3 


Right-click pen button 


4 


Pen tip 



Your Tablet-PC uses a specifically designed electrostatic pen or stylus for use in tablet PC mode. Instead of relying on battery power, the energy source for the 
stylus is magnetic energy produced by the excitation coil built into the digitizer itself. The signal from the coil is picked up by the stylus and triggers the stylus 
to transmit an electric field. 

The transmitted electric field is sensed by a matrix of conductive lines, accurate stylus position determined using the low amplitude signals received on the 
vertical and horizontal conductors, and an appropriate signal is transferred to the digitizer's on-board processor. 

Tips come in two colors/types, blue and black. The blue tips are designed for a "softer" writing feel. The black tips present a "harder" writing feel. The system 
ships with a total of 5 (3 blue and two black) tips. These tips are easily replaced by using the pen-tip removal tool which looks similar to an oversized pair of 
tweezers. This tool also ships with the Tablet-PC. 

|£j NOTE: I n the event of a suspected digitizer failure, the pen tip should be examined. If the tip is damaged it needs to be replaced. This will oftentimes 
remedy to problem with the digitizer. 




Calibrating the Pen 



The pen can function at the default calibration or at a calibration set by you or by another user. It is recommended that you use the pen only while it is 
calibrated to your personal calibration settings. Calibration optimizes pen performance for each user. 

To calibrate the pen: 

1. Open QuickSet. 

2. Click System h> Tablet Settings. 

3. On the Dell Tablet Settings window, click Pen & I nput then click Calibrate. 

4. Follow the instructions on the screen. The calibration markers are displayed on the screen as plus signs (+). Tap the pen in the exact center of each of 
the calibration markers. 

BSj NOTE: Be sure to calibrate the pen for use in both portrait and landscape display orientations. 



Troubleshooting 



The pen is the first component to be investigated in the event of a suspected problem with the digitizer. Verify the tip is in good shape (free of chips, excessive 
wear, etc.) by closely examining it. If there is any doubt, you should change out the tip with a new one or one that is known to be in good condition. 



You should also verify that the touch capabilities are not affected. Switch to touch mode and see if the problem still exists. If there are no symptoms present 
while in touch mode, the pen tip is the most likely suspect. If the problem does persist in touch mode you should run diagnostics and take the necessary steps 
depending on the results. 



Specifications 



• Processors 

• System Information 

• ExpressCard™ 

• SD™ Card 

• Memory 

• Smart Card 

• Ports and Connectors 

• Communications 

• Video 



• Audio 

• Display 

• Keyboard 

• Touch Pad 

• Battery 

• AC Adapter 

• Fingerprint Reader 

• Physical 

• Environmental 



Wa NOTE: Offerings may vary by region. For more information regarding the configuration of 

your Tablet-PC, click Start ** (or Start in Windows XP)^ Help and Support, and then 
select the option to view information about your Tablet-PC. 



Processor 


Processor type 


Intel® Core™ 2 Duo ULV 


L2 cache 


3 MB 


External bus frequency 


800 MHz 



System Information 


System chipset 


Intel SFF Chipset 


Data bus width 


64 bits 


DRAM bus width 


Dual-channel (2) 64-bit buses 


Processor address bus width 


36 bits 


Flash EPROM 


4 MB 


PCI bus 


32 bits 



ExpressCard™ 


Q NOTE: The ExpressCard slot 


s designed 


only for ExpressCards. It does NOT support PC cards. 


ExpressCard connector 


ExpressCard slot (supports both USB- and PCIe- 
based interfaces) 


Cards supported 


34 mm ExpressCards 


External bus frequency 


800 MHz 



Secure Digital (SD) Memory Card Reader 



Cards supported 



SD, SDIO, SD HC, Mini SD (w/adapter) MMC, MMC+, 
Mini MMC (w/adapter)) 



Memory 


Memory module connector 


one user-accessible SODIMM socket 


Memory module capacities 


1 GB, 2 GB, 4 GB 


Memory type 


DDR3 SODIMM 


Minimum memory 


1 GB (onboard memory) 


Maximum memory 


5 GB capable (requires 64-bit Windows Vista® 
operating system) 



Smart Card 


Read/write capabilities 


Reads and writes to all ISO 7816 1/2/3/4 
microprocessor cards (T=0, T=l) 


Cards supported 


3 V and 5 V 


Program technology supported 


J ava cards 



1 nterface speed 


9600-115,200 bps 


EMV level 


Level 1 certified 


WHQL certification 


PC/SC 


Compatibility 


Compatible within a PKI environment 


Insert/ eject cycles 


Certified for up to 100,000 cycles 



Ports and Connectors 


Audio 


microphone connector, stereo headphone/speakers 
connector 


IEEE 1394 


4-pin serial connector 


E-dock 


Standard E-Dock connector for devices such as E- 

Dock advanced port replicators and expansion 

stations 

The optional media base can be connected to the E- 

Dock connector. 


Mini-card 


One dedicated half-mini-card slot for WLAN 

One dedicated full-mini-card slot for WWAN / GPS 

(mobile broadband) 


Network adapter 


RJ-45 port 


USB 


two 4-pin USB 2.0-compliant connectors 


Powered USB 


5-pin power supply and 4-pin USB 
2.0-compliant connector 


USB 


Two 4-pin USB 2.0-compliant connectors 
One USB connector can be used as an eSATA 
connector. The other USB connector with PowerShare 
can be used to charge a USB device when the 
computer is turned on or off. 


Video 


15-hole connector 



Communications 


Network adapter 


10 / 100 / 1000 Ethernet LAN on system board 


Wireless 


internal WLAN, WWAN, and Bluetooth® wireless 
support (if optional cards are purchased) 



Video 


Video type 


integrated 


Video controller 


Mobile Intel® GMA X4500 Graphics Controller 


Data bus 


integrated 


Video memory 


up to 256 MB shared memory 



Audio 


Audio type 


two-channel high definition audio codec 


Audio controller 


IDT92HD71B 


Stereo conversion 


24-bit (analog-to-digital and digital-to-analog) 


1 nterfaces: 




Internal 


high definition audio 


External 


microphone-in connector, stereo 
head phones/ speakers mini-connector 


Speaker 


one 4-ohm speaker 


Internal speaker amplifier 


2-Watt channel into 4 ohms 


Volume controls 


Volume control buttons and program menus 



Display 


Type (active-matrix TFT) 




Active X / Y 


12.1 inches WXGA 


Dimensions 


Height 


261.12 mm (10.28 inches) 


Width 


163.2 mm (6.43 inches) 


Diagonal 


307.34 mm (12.1 inches) 



Maximum Resolutions 


1280 x 800 at 262 K colors 


Operating angle 


0° (closed) to 160° 


Refresh rate 


60 Hz (40 Hz in All Day Battery Life (ADBL) mode) 


Viewing angles 


Horizontal 


40/40° 


Vertical 


15/30° 


Pixel pitch 


0.204 


Power consumption (panel with backlight, typical) 


3.0 W (max) 



Keyboard 


Number of keys 


87 (U.S. and Canada); 88 (Europe); 91 (Japan) 


Layout 


QWERTY/AZERTY/Kanji 



Touch Pad 


X/Y position resolution 
(graphics table mode) 


240 CPI 


Size 


Width 


73.0-mm (2.9-inch) sensor-active area 


Height 


42.9-mm (1.7-inch) rectangle 



Battery 


Type 


4-cell: 28 Whr/14.8V 
6-cell: 58 Whr/ll.lV 
Slice 48: Whr/ll.lV 


Dimensions: 


Depth 


4-cell lithium-ion battery 


210 mm (8.27 inches) 


6-cell lithium-ion battery 


210 mm (8.27 inches) 


Slice 


9.5 mm (0.38 inch) 


Height 


4-cell lithium-ion battery 


18 mm (0.71 inch) 


6-cell lithium-ion battery 


23.2 mm (0.91 inch) 


Slice 


186 mm (7.32 inches) 


Width 


4-cell lithium-ion battery 


46.5 mm (1.83 inch) 


6-cell lithium-ion battery 


68.5 mm (2.7 inches) 


Slice 


279 mm (10.98 inches) 


Weight 


4-cell lithium-ion battery 


0.2 kg (0.44 lb) 


6-cell lithium-ion battery 


0.37-0.38 kg (0.82-0.84 lb) 


Slice 


0.59-0.61 kg (1.3-1.34 lb) 


Voltage 


11.1 VDC (6-cell, Slice) 
14.8 VDC (4-cell) 


Charge time (approximate) 


Computer off 


approximately 1 hour to 80% capacity (4-cell battery) 
Approximately 2 hours to 100% capacity (4 cell battery) 


Life span (approximate) 


300 charge/discharge cycles 


Temperature range 


Operating 


0° to 35°C (32° to 95°F) 


Storage 


-10° to 60°C (14° to 140°F) 


Coin-cell battery 


CR-2032 



AC Adapter 


1 nput voltage 


90-264 VAC 


Input current (maximum) 


1.1 A 


Input frequency 


47-63 Hz 



Output current 


3.3 A (maximum at 10ms pulse) 
2.3 A (continuous) 


Output power 


45 W or higher 


Rated output voltage 


19.5 ±1.0 VDC 


Dimensions: 


Height 


16 mm (0.63 inch) 


Width 


63 mm (2.48 inches) 


Depth 


88 mm (3.46 inches) 


Temperature range: 


Operating 


0° to 40°C (32° to 104°F) 


Storage 


-10° to 70°C (-50° to 158°F) 



Fingerprint Reader (optional) 


Type 


UPEK TCS3 TouchStrip™ strip sensor with CMOS active 
capacitive pixel-sensing technology 


Array size 


248 x 2 pixels 



Physical 


Height 


19.95-26.82 mm (0.79-1.06 inch) 


Width 


290.6 mm-296.6 mm (11.44-11.68 inches) 


Depth 


204 mm-226 mm (8.03-8.9 inches) 


Weight 


1 kg (2.2 lb) 



Environmental 


Temperature range: 


Operating 


0°to 35°C (32° to 95°F) 


Storage 


-40° to 65°C (-40° to 149°F) 


Relative humidity (maximum): 


Operating 


10% to 90% (non-condensing) 


Storage 


5% to 95% (non-condensing) 


Maximum vibration (using a random-vibration 


spectrum that simulates user environment): 




Operating 


0.66 GRMS 


Storage 


1.3 GRMS 


Maximum shock (measured with hard drive in 


head-parked position and a 2-ms half-sine pulse): 




Operating 


143 G 


Storage 


163 G 


Altitude (maximum): 


Operating 


-15.2 to 3048 m (-50 to 10,000 ft) 


Storage 


-15.2 to 3048 m (-50 to 10,000 ft) 


Airborne contaminant level 


G2 or lower as defined by ANSI/ISA-S71.04 


1985 



Tablet- PC Buttons 

Dell™ Latitude™ XT2 Service Manual 

Your Tablet-PC has three tablet buttons located beside the power button. In order for these buttons to function properly, Dell Control Point System Manager 

must be installed. 




1 


Power button 


3 


Screen rotate button 


2 


Windows Security button 


4 


Dell Control Point button 



Power button — Used to power the system on and off. 

Windows Security button — If you use your Tablet-PC in tablet mode, press this button to access the Windows Task Manager dialog box or a login screen, 
the same way you use the <CtrlxAltxDel> key sequence in notebook mode. 

Screen rotate button — While the Tablet-PC is in tablet mode, use the screen rotate button to change the display orientation from portrait to landscape 
mode. Each time you press and release the screen rotate button, the screen image rotates clockwise 90 degrees. 

QuickSet tablet settings button — Press this button to view and configure options for the Tablet-PC and the pen through Dell Control Point System Manager. 
You can configure this button to perform a different action using Windows Vista™ Tablet-PC Settings. 

Scroll Buttons 




I 



T^TT 



Scroll control 



Using the Scroll Control 



i To scroll through a list of items or a set of pages one at a time, shift the scroll control up or down and release. The control automatically returns to the 

center/neutral position when released. 
i To rapidly scroll through a list of items or a set of pages, shift the control up or down and hold it, releasing it when you wish to stop scrolling. 
i To select objects, press and release the scroll control when it is in the center/neutral position. 
i To launch context sensitive menus, press and hold the scroll control until a complete circle is drawn on the display then release. This is equivalent to 

clicking the right mouse button on a notebook computer. 

Use the back button to move backwards in applications that support navigation, such as web browsers and Windows Explorer. It is also used to close the 
active window. 



To move backward, press and release the back button. 

To close the active window, press and hold the back button. 

To customize the back button behavior, use the Tablet and Pen Settings in Windows Vista. 



Tablet- PC I nterface 

Dell™ Latitude™ XT2 Service Manual 

• Microsoft™ Windows Vista™ /XP Tablet-PC Interface Comparison 

• Windows Vista 

• Windows™ XP 



Windows Vista/ XP Tablet-PC I nterface Comparison 

Depending on the configuration you ordered, your Tablet-PC shipped with either the Windows Vista or Windows XP operating system. There are several 
differences in the Tablet PC-interfaces between the two. Listed below are the primary differences. 



Tablet PC 1 nterface Comparison Table 


Feature 


Description 


Vista | 


XP | 


Touch 


Ability to use finger as an input device. 


YES 


YES 


Windows Journal 


Native note-taking application which takes input directly from pen or 
touch. 


YES | 




Snipping Tool 


Tool used to capture portions of visual data (documents, pictures, etc.) 
via pen or touch. 


YES 


YES* 


Flicks 


Gesture activated shortcuts for common tasks. 


YES 




Check Boxes 


Visual identifier in folders for selecting files. 


YES 




Cursor Feedback 


Visual indicator for tap location. 


YES 




Tablet 1 nput Panel 


Tool used to input data via pen or touch that takes the place of a 
keyboard. 


YES 


YES 


1 nput device- sensitive 
tools 


Tablet Input Panel and icon change size according to pen or touch being 
used. 


YES | 




Tablet Cursor 


Special Tablet cursor used for Tablet PC functions as opposed to a 
standard mouse pointer. 


YES 




Touch Widget 


Separate tool that appears in Touch Mode used for right-clicking 
purposes. 


YES 




Cursor Feedback 


Ability to see if the target has been hit by using visual feedback for 
success. 


YES | 




Cursor Feedback 


Ability to see if the target has been hit by using visual feedback for 
success. 


YES 





Available as a separate download from Microsoft. 

Windows Vista 
Pen Usage 

Using the Pen as a Mouse 

You can use the pen the same way you use a mouse or touch pad with a notebook computer. Holding the pen near the display makes a small cursor appear. 
Moving the pen moves the cursor. 

The table below describes how to use the pen. 



Electrostatic Pen Usage 


Appearance 


Action 


Function 


O 


Gently tap the pen tip on the screen of your Tablet PC. 


Same as a single-click on 
a mouse. 


O 


Gently tap the pen tip twice in quick succession on the screen of your Tablet-PC. 


Same as a double-click on 
a mouse. 


O 


Touch the pen on the screen and hold it in place momentarily until Windows 
draws a complete circle around the cursor. 


Same as a right-click on a 
mouse. 




Working With Files 

You can open, delete, or move many files or folders at one time by selecting multiple items from a list. Using a tablet pen, hover over one item at a time and 
select the check box that appears to the left of each item. 

To turn check boxes on: 

1. Go to Folder Options. 

2. Click on the View tab. 

3. Under Advanced settings, select the Use check boxes to select items check box, and then click OK. 

Using the Pen as a Pen 

The Windows Vista handwriting recognition software makes it easy to enter text into your applications with the pen. Some applications, such as Windows 
Journal, allow you to write with the pen directly into the application window. 

Tablet- PC I nput Panel 



When an application does not directly support pen input, you can use the Tablet PC I nput Panel to enter text into your application. If you tap in an editable 



area, the Tablet PC Input Panel icon 



EZJ 



appears. Tapping the icon makes Input Panel slide out from the edge of the display. 



You can also open the Input Panel by tapping the Input Panel tab, which is docked at the edge of the screen when the Input Panel is hidden. 



! 



You can move the I nput Panel tab by dragging it up or down along the edge of the screen. Then, when you tap it, the I nput Panel opens at the same 
horizontal location on the screen that the tab appears. 




You can use the writing pad, the character pad, or the on-screen keyboard to enter text. The writing pad and the character pad convert your handwriting into 
typed text. The on-screen keyboard works just like a standard keyboard except that you enter text by tapping keys with your tablet pen. The following table 
describes the different choices for using the Input Panel. 



Input Panel Icons 


Icon 


Name 


Function 




Writing Pad 


With the writing pad, you can write continuously as if you were writing on a lined piece of 
paper. 









Character Pad 


The character pad converts your handwriting to typed text, one letter, number, or symbol at a 
time. 


1 uuuu 1 






On-screen 
Keyboard 


The on-screen keyboard is similar to a standard keyboard. 


Bssa 





The writing pad and character pad have a number pad, a symbol pad, and web quick keys to help you quickly and accurately enter these types of text. These 
quick keys are hidden when you start to write, but appear after you insert or delete your writing. 



Pen Flicks 



/ P«i and Input Devices 



' PcnQ&tiore [ Porter Options | Ftdts | 



[^lu^e ftdffi Do perfbnr common actions quddy and easfy 
ijaf Navigational fldss ^v 



Customize... 



1 



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relaxed seGrcj ray lead to acadental nicks. 



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France usTKifids 



Ct; 1 j Caned 



Pen flicks enable you to use the pen to perform actions that normally require a keyboard, such as pressing <Page Up> or using the directional arrow keys. Pen 
flicks are quick, directional gestures. You simply quickly draw a short line in one of eight directions. When a pen flick is recognized, the Tablet-PC performs the 
action assigned. The image below depicts the default pen flick settings. These can be customized by going to Start>Control Panel>Pen and Input Devices 
and clicking on the Flicks tab. 



Dracj Up 



Copy 



@ 



Back Forward 

Drag Down 



Undo J"} Pa^te 



Touch Usage 

One of the key advantages of the Latitude XT2 Tablet PC is the ability to easily switch from pen input to touch input. 




When you use Touch Mode, a translucent image of a computer mouse, called the touch pointer, floats beneath your finger. The touch pointer has left and right 
mouse buttons that you can tap with your finger. You use the area beneath the buttons to drag the touch pointer. 

Windows XP 
Pen Usage 

Using the Pen as a Mouse 

You can use the pen the same way you use a mouse or touch pad with a notebook computer. Holding the pen near the display makes a small cursor appear. 
Moving the pen moves the cursor. 

Tapping on the screen once is the same as clicking with a mouse. A double-tap constitutes a double-click. 

Right-clicking with the pen is accomplished by holding the pen tip down on the screen until a red circle surrounds the pointer as illustrated to the right. Lifting 
the pen from here opens up the corresponding submenu. 



.0 

■ 



Using the Pen as a Pen 

The native handwriting recognition software makes it easy to enter text into your applications with the pen. Some applications, such as Windows Journal, 



allow you to write with the pen directly into the application window. 
Tablet PC I nput Panel 



When an application does not directly support pen input, you can use the Tablet PC Input Panel to enter text into your application. If you tap in an editable 



area, the Tablet PC Input Panel icon 



LI] 



appears. Tapping the icon makes Input Panel appear. 



You can move the I nput Panel tab by dragging it up or down along the edge of the screen. Then, when you tap it, the I nput Panel opens at the same 
horizontal location on the screen that the tab appears. 

You can use the writing pad, the character pad, or the on-screen keyboard to enter text. The writing pad and the character pad convert your handwriting into 
typed text. The on-screen keyboard works just like a standard keyboard except that you enter text by tapping keys with your tablet pen. The following table 
describes the different choices for using the Input Panel. 



Input Panel Icons 


Icon 


Name 


Function 




Writing Pad 


With the writing pad, you can write continuously as if you were writing on a lined piece of 
paper. 









Character Pad 


The character pad converts your handwriting to typed text, one letter, number, or symbol at a 
time. 


1 uuuu 1 






On-screen 
Keyboard 


The on-screen keyboard is similar to a standard keyboard. 


B5B3J 





The writing pad and character pad have a number pad, a symbol pad, and web quick keys to help you quickly and accurately enter these types of text. These 
quick keys are hidden when you start to write, but appear after you insert or delete your writing. 



Touch Usage 



One of the key advantages of your Tablet-PC is the ability to easily switch from pen input to touch input. Similar to how the pen works, tapping with your 
finger on the screen once is the same as clicking with a mouse. A double-tap constitutes a double-click. 

Right-clicking in Touch Mode is accomplished by holding your finger tip down on the screen until a red circle surrounds the pointer. This can be difficult to see as 
often times user's fingers cover the pointer. Lifting your finger from this point opens up the corresponding submenu. 



Tablet and Pen Settings 



Most of the settings for the tablet and pen are located in Control Panel under Tablet and Pen Settings. These are also accessed through Dell Control Point 
System Manager. 



Table- PC User Modes 

Dell™ Latitude™ XT2 Service Manual 




Notebook Mode 

Your Tablet-PC can be used either in notebook mode or tablet mode. To use your Tablet-PC in notebook mode, open the display until it reaches a comfortable 
viewing angle as in the image to the right, and use the keyboard and display as you would those of any other notebook computer. 



Tablet Mode 

Your Tablet-PC converts from notebook mode to tablet mode with a 180-degree clockwise twist of the display's rotating hinge. 
/\ CAUTI ON: Forcing the hinge beyond the 180-degree point will damage the Tablet-PC. 




Open the display of the Tablet-PC until it 

reaches a 90-degree angle, perpendicular 

to the base. 




Brace the base with one hand on the palm rest, grasp the top of the 

display with the other hand, and, following the directional arrow 

inscribed on the hinge cover, turn the rotating hinge clockwise 180 

degrees until you feel the display engage securely. 




Lay the display assembly on the base 
with the display facing upwards. 



When you convert your Tablet-PC between notebook and tablet modes, the screen orientation of your Tablet-PC will automatically change according to the 
settings you have established in the Dell Control Point System Manager application or the Windows Vista Pen and Tablet settings application, most commonly 
from landscape (notebook mode) to portrait (tablet mode). 



Tablet- PC Settings 

Dell™ Latitude™ XT2 Service Manual 

I installation 

The N-trig Tablet Settings applet is built into the driver package. You can either install it directly from the ResourceCD or obtain the latest version from 
support.dell.com. Once the file has been extracted, an InstallShield Wizard will walk you through the process of installing the software. The appearance of the 
N-trig icon is an indication of a successful installation. 

Windows™ XP vs. Windows Vista™ 

There is only one major difference in the N-trig applet between XP and Vista. On the Digitizer Options tab, under the Input Mode section, there is no listing for 
Dual Mode on the XP version. Windows XP does allow use of both pen and touch but the seamless switching capability that Vista offers is not available. 

N-trig Applet 

The N-trig Tablet Settings applet is used to adjust several settings for the digitizer. Once the N-trig drivers are loaded, an icon appears in the system tray. 




Hovering over the icon with your pointer displays the firmware version number. Right-clicking the icon brings up the sub menu below. 




Clicking on Properties opens up the N-trig Tablet Settings window. 



TfiTT 



.*** N-trig Pen and Touch Settings 



Digitizer Options Interaction Options ^/:'' T ; v_ : %'.;; ^; About 



General 

IVl Enable Multi-Touch Gestures 

f7\ Enable Visual Feedback 

Scroll Gesture 

|7] Enable 

•r 

Sensitivity Low 



PI Invert Direction 



Placing two fingers on the screen and moving them on the 
horizontal and/or vertical axis will generate scrolling 



-fl- 



High 



Zoom Gesture 
[3 Enable 

A 



Pinching two fingers together or apart will generate zoom in or 
out respectively 



Sensitivity Low 



High 



Two Fingers Double Tap Gesture 

[yj Enable Double tap on the screen using two fingers in order to perform 

the following action 



It 



Action: | Display Off 
Speed 



[Browse... | 



Slow 



Q 



Restore defaults 



OK 1 Cancel 



There are four tabs on the N-trig Tablet Settings window: 



Digitizer Options 
Interaction Options 
Multi-Touch Gestures 
About 



Memory and Mini-Card Cover 

Dell™ Latitude™ XT2 Service Manual 

• Removing the Memory and Mini-Card Cover 

• Replacing the Memory and Mini-Card Cover 



/:\ WARNI NG: Before working inside your Tablet- PC, read the safety information that shipped with your Tablet- PC. For additional safety best 
practices information, see the Regulatory Compliance Homepage at www.dell.com/ regulatory compliance. 



Removing the Memory and Mini-Card Cover 




1. Follow the procedures in Before Working Inside Your Tablet-PC . 

2. Remove the battery from the Tablet-PC, 




3. Loosen the two captive screws on the memory and mini-card cover. 




4. Tilt the cover towards the front of the Tablet-PC. 




5. Lift the cover at an angle, and remove from the Tablet-PC. 




Replacing the Memory and Mini-Card Cover 



1. I nsert the tabs of the memory and mini-card cover into the slots of the base. 

2. Rotate the cover down and into place. 

3. Tighten the two captive screws on the memory and mini-card cover. 



4. Install the battery. See Replacing the Main Battery . 



Main Battery 

Dell™ Latitude™ XT2 Service Manual 

• Removing the Main Battery 

• Replacing the Main Battery 



/:\ WARNI NG: Before working inside your Tablet- PC, read the safety information that shipped with your Tablet- PC. For additional safety best 
practices information, see the Regulatory Compliance Homepage at www.dell.com/ regulatory compliance. 




Removing the Main Battery 



1. Follow the procedures in Before Working Inside Your Tablet-PC . 




2. Slide the two battery-bay latch releases on the bottom of the Tablet-PC outward to each side. 




3. Slide the battery out of the battery bay. 




4. Remove the battery from the Tablet-PC. 




Replacing the Main Battery 

1. Slide the new battery into the battery bay. 

2. Slide the battery until it locks into position. 



When properly seated, the battery is flush with the bottom edge of the computer and the battery-bay release latches are in the inward position as shown in 
Step 4 above. 



Battery Latch 

Dell™ Latitude™ XT2 Service Manual 



A 



WARN I NG: Before working inside your Tablet- PC, read the safety information that shipped with your Tablet- PC. For additional safety best 
practices information, see the Regulatory Compliance Homepage at www.dell.com/ regulatory compliance. 



Removing the Battery Latch 




1. 


Follow the 


2. 


Remove th 


3. 


Remove th 


4. 


Remove th 


5. 


Remove th 


6. 


Remove th 


7. 


Remove th 


8. 


Remove th 


9. 


Remove th 


10. 


Remove th 


11. 


Remove th 


12. 


Remove th 


13. 


Remove th 



procedures in Before Working Inside Your Tablet-PC . 

e battery from the Tablet-PC. 

e hard drive from the Tablet-PC. 

e memory and mini-card cover from the Tablet-PC. 

e memory from the Tablet-PC. 

e mini-card from the Tablet-PC. 

e BIOS chip from the Tablet-PC. 

e Bluetooth module from the Tablet-PC. 

e hinge cover from the Tablet-PC. 

e keyboard from the Tablet-PC. 

e display assembly from the Tablet-PC. 

e palm rest from the Tablet-PC. 

e system board from the Tablet-PC. 




14. Remove the screw securing the right battery latch. 




ti^s^s^ 




15. Slide the latch assembly to the right. 




J M-t ^ i i In J I fli 




16. Remove the right latch inside assembly from the bottom plastics. 




17. Remove the right latch from the outside of the Tablet-PC. 




18. Remove the screw securing the left latch assembly to the Tablet-PC. 




18. Slide the inside latch assembly to the right and lift out of the bottom plastic. 




19. Remove the left battery latch from the outside of the Tablet-PC. 








BIOS Chip 



Dell™ Latitude™ XT2 Service Manual 



A 



WARN I NG: Before working inside your Tablet- PC, read the safety information that shipped with your Tablet- PC. For additional safety best 
practices information, see the Regulatory Compliance Homepage at www.dell.com/ regulatory compliance. 



Removing the BIOS Chip 




1. Follow the procedures in Before Working Inside Your Tablet-PC . 

2. Remove the battery from the Tablet-PC, 

3. Remove the memory and mini-card cover from the Tablet-PC. 




4. Use the orange tab to open the BIOS chip retaining clip. 




5. Use your fingers or small tweezers so remove the BIOS chip from the Tablet-PC. 



I nternal Card With Bluetooth® Wireless Technology 

Dell™ Latitude™ XT2 Service Manual 

• Removing the Internal Card With Bluetooth Wireless Technology 

• Replacing the Internal Card With Bluetooth Wireless Technology 

/:\ WARNI NG: Before working inside your Tablet- PC, read the safety information that shipped with your Tablet- PC. For additional safety best 
practices information, see the Regulatory Compliance Homepage at www.dell.com/ regulatory compliance. 

Removing the I nternal Card With Bluetooth Wireless Technology 




1. Follow the procedures in Before Working Inside Your Tablet-PC . 

2. Remove the battery from the Tablet-PC. 




3. Loosen the captive screw on the Bluetooth assembly. 




4. Carefully lift the Bluetooth assembly out of the Tablet-PC. 




5. Disconnect the Bluetooth cable from the Bluetooth. 




6. Remove the Bluetooth assembly from the Tablet-PC. 




Replacing the I nternal Card With Bluetooth Wireless Technology 

1. Connect the Bluetooth cable to the new Bluetooth assembly. 

2. Carefully slide the Bluetooth assembly into the bay. 

BSj Note: Ensure that the Bluetooth cable does not disconnect from the Bluetooth assembly when sliding it into the bay. 



3. Replace the captive screw on the Bluetooth assembly to secure the Bluetooth assembly in place. 

4. Replace the battery. See Replacing the Main Battery. 



Coin- Cell Battery 

Dell™ Latitude™ XT2 Service Manual 

• Removing the Coin-Cell Battery 

• Replacing the Coin-Cell Battery 



/:\ WARNI NG: Before working inside your Tablet- PC, read the safety information that shipped with your Tablet- PC. For additional safety best 
practices information, see the Regulatory Compliance Homepage at www.dell.com/ regulatory compliance. 



Removing the Coin-Cell Battery 




1. Follow the procedures in Before Working Inside Your Tablet-PC . 

2. Turn the computer over and remove the main battery from the Tablet-PC. 

3. Turn the computer over to the top side and remove the hinge cover from the Tablet-PC. 

4. To get to the coin-cell battery, remove the keyboard from the Tablet-PC. 

5. Disconnect the coin-cell cable from the system board. 




6. Gently pry the coin-cell loose from the adhesive that attaches it to the system board and remove from the Tablet-PC. 





Replacing the Coin-Cell Battery 



1. Peel the backing from the new coin-cell battery. 

2. Connect the coin-cell cable to the system board and press the coin-cell battery into place on the system board. See diagram in step 6 above for 
placement. 

3. Replace the keyboard , attaching it securely with the keyboard screws. 

4. Replace the hinge cover . 

5. Turn the computer over and replace the battery. See Replacing the Main Battery . 



Grip Cover 



Dell™ Latitude™ XT2 Service Manual 

• Removing the Grip Cover 

• Replacing the Grip Cover 



/:\ WARNI NG: Before working inside your Tablet- PC, read the safety information that shipped with your Tablet- PC. For additional safety best 
practices information, see the Regulatory Compliance Homepage at www.dell.com/ regulatory compliance. 



Removing the Grip Cover 




1. Follow the procedures in Before Working Inside Your Tablet-PC . 

2. Remove the battery from the Tablet-PC. 




3. Remove the two screws from the bottom of the grip cover. 




4. Slide the grip cover away from the Tablet-PC and remove. 




jTsThTT 


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■ mud 


Jan 


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Replacing the Grip Cover 



1. Slide the new grip cover onto the base of the Tablet-PC. 

2. Attach the grip cover with the two grip cover screws. 

3. Replace the battery. See Replacing the Main Battery . 



Hard Drive 

Dell™ Latitude™ XT2 Service Manual 

• Removing the Hard Drive 

• Replacing the Hard Drive 



/:\ WARNI NG: Before working inside your Tablet- PC, read the safety information that shipped with your Tablet- PC. For additional safety best 
practices information, see the Regulatory Compliance Homepage at www.dell.com/ regulatory compliance. 



Removing the Hard Drive 




1. Follow the procedures in Before Working Inside Your Tablet-PC . 

2. Remove the battery from the Tablet-PC, 




3. Loosen the four captive screws on the hard drive bracket. 




4. Remove the hard drive bracket. 




5. Slide the hard drive towards the edge of the Tablet-PC to disconnect from the system board. 




6. Remove the hard drive from the Tablet-PC. 





Replacing the Hard Drive 



1. Slide the new hard drive into position gently until the connector end fits into the system-board connector. 

2. Secure the hard drive into place by replacing the hard drive bracket. Attach the bracket to the Tablet-PC with the four captive screws. 

3. Replace the battery. See Replacing the Main Battery . 



Heat Sink and Fan Assembly 

Dell™ Latitude™ XT2 Service Manual 



A 



WARN I NG: Before working inside your Tablet- PC, read the safety information that shipped with your Tablet- PC. For additional safety best 
practices information, see the Regulatory Compliance Homepage at www.dell.com/ regulatory compliance. 



Removing the Heat Sink and Fan Assembly 




1. 


Follow the 


2. 


Remove th 


3. 


Remove th 


4. 


Remove th 


5. 


Remove th 


6. 


Remove th 


7. 


Remove th 


8. 


Remove th 


9. 


Remove th 


10. 


Remove th 


11. 


Remove th 


12. 


Remove th 


13. 


Remove th 



procedures in Before Working Inside Your Tablet-PC . 

e battery from the Tablet-PC. 

e hard drive from the Tablet-PC. 

e memory and mini-card cover from the Tablet-PC. 

e memory from the Tablet-PC. 

e mini-card from the Tablet-PC. 

e BIOS chip from the Tablet-PC. 

e Bluetooth module from the Tablet-PC. 

e hinge cover from the Tablet-PC. 

e keyboard from the Tablet-PC. 

e display assembly from the Tablet-PC. 

e palm rest from the Tablet-PC. 

e system board from the Tablet-PC. 




» o" 



1*^5 



14. Disconnect the fan cable from the system board connector, then flip over the system board. 




worn ■#.■ ■'■ 

I -*.,-■'- V ■>■■:'■?•« 

-■ ■ ■ . m ■! ..■' 







15. Loosen the four captive screws on the heat sink. 




16. Remove the top section of the heat sink assembly from the system board, then turn over the system board again. 




17. Remove the bottom section of the heat sink assembly. 




i 9 



PPWfi w| 




fi "\ 



Keyboard 



Dell™ Latitude™ XT2 Service Manual 

• Removing the Keyboard 

• Replacing the Keyboard 



/:\ WARNI NG: Before working inside your Tablet- PC, read the safety information that shipped with your Tablet- PC. For additional safety best 
practices information, see the Regulatory Compliance Homepage at www.dell.com/ regulatory compliance. 



Removing the Keyboard 




1. Follow the procedures in Before Working Inside Your Tablet-PC . 

2. Remove the battery from the Tablet-PC, 

3. Remove the hinge cover from the Tablet-PC. 




4. Remove the two screws securing the keyboard to the Tablet-PC. 




5. Gently slide the keyboard towards the display, being careful not to scratch the LCD bezel. 




6. Release the zif connector on the touchpad connection. 






7. Disconnect the touch pad cable. 




8. Release the retaining clip on the keyboard connector. 




9. Disconnect the keyboard cable from the system board. 




10. Remove the keyboard from the Tablet-PC. 





Replacing the Keyboard 

/\ CAUTION: The key caps on the keyboard are fragile, easily dislodged, and time-consuming to replace. Exercise care when removing and handling 
the keyboard. 



1. Holding the top of the keyboard slightly above the computer, connect the touchpad cable and the keyboard cable to the system board. 

2. Carefully press each side to snap the keyboard into place. 

3. Secure the keyboard to the Tablet-PC with the two keyboard screws as shown in the illustration in step 4 of Removing the Keyboard. 

4. Replace the hinge cover . 

5. Close the display and turn the computer over. 

6. Replace the battery. See Replacing the Main Battery. 



Display Assembly 

Dell™ Latitude™ XT2 Service Manual 



A 



WARN I NG: Before working inside your Tablet- PC, read the safety information that shipped with your Tablet- PC. For additional safety best 
practices information, see the Regulatory Compliance Homepage at www.dell.com/ regulatory compliance. 



Removing the Display Assembly 




1. Follow the procedures in Before Working Inside Your Tablet-PC . 

2. Remove the battery from the Tablet-PC. 

3. Remove the memory and mini-card cover from the Tablet-PC. 

4. Remove the hinge cover from the Tablet-PC. 

5. Remove the grip cover from the Tablet-PC. 




6. Disconnect any antenna cables from the bottom of the Tablet-PC. 




7. From the top of the closed Tablet-PC, remove the two screws from the display assembly hinge grip. 




8. From the inside of the Tablet-PC, disconnect the display assembly cable from the system board. 




9. Unthread the antenna cables from the inside of the Tablet-PC. 




10. Remove the five screws securing the display assembly to the Tablet-PC. 




11. Lift the display assembly straight up to separate it from the Tablet-PC. 




12. Remove the display assembly. 



Hinge Cover 

Dell™ Latitude™ XT2 Service Manual 

• Removing the Hinge Cover 

• Replacing the Hinge Cover 



/:\ WARNI NG: Before working inside your Tablet- PC, read the safety information that shipped with your Tablet- PC. For additional safety best 
practices information, see the Regulatory Compliance Homepage at www.dell.com/ regulatory compliance. 

,A CAUTI ON: To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by periodically touching a connector on the back 
panel of the computer. 

,A CAUTI ON: The hinge cover is fragile and can be damaged if extreme force is used. Be careful when removing the hinge cover. 



Removing the Hinge Cover 



1. Follow the procedures in Before Working Inside Your Tablet-PC . 

2. Turn the computer top-side up, and then open the display all the way (180 degrees) so that it rests on your work surface. 




3. Insert a plastic scribe or flathead screwdriver into the slot and gently pry up the hinge cover on the right side to release. 




4. Ease the hinge cover up, moving from right to left, and remove it. 




Replacing the Hinge Cover 



To replace the hinge cover, insert the left edge of the cover into the hinge cover slot and press from left to right until the cover snaps into place. 



Memory 



Dell™ Latitude™ XT2 Service Manual 

• Removing a Memory Module 

• Replacing a Memory Module 



/:\ WARNI NG: Before working inside your Tablet- PC, read the safety information that shipped with your Tablet- PC. For additional safety best 
practices information, see the Regulatory Compliance Homepage at www.dell.com/ regulatory compliance. 



Removing a Memory Module 




1. Follow the procedures in Before Working Inside Your Tablet-PC . 

2. Remove the battery from the Tablet-PC, 

3. Remove the memory and mini-card cover from the Tablet-PC. 




3. Use your fingers to gently pry the retaining clips away from the memory module. 




4. Remove the memory module from the Tablet-PC at an angle. 





Replacing a Memory Module 



1. Position the memory module into place by starting with the top side of the module and easing it down into place at an angle. 

2. Ease the memory module down until it snaps into place between the retainer clips. 

3. Replace the memory and mini-card cover . 

4. Replace the battery. See Replacing the Main Battery . 



Palm Rest 



Dell™ Latitude™ XT2 Service Manual 



A 



WARN I NG: Before working inside your Tablet- PC, read the safety information that shipped with your Tablet- PC. For additional safety best 
practices information, see the Regulatory Compliance Homepage at www.dell.com/ regulatory compliance. 



Removing the Palm Rest 




1. Follow the procedures in Before Working Inside Your Tablet-PC . 

2. Remove the battery from the Tablet-PC, 

3. Remove the hard drive from the Tablet-PC. 

4. Remove the hinge cover from the Tablet-PC. 

5. Remove the keyboard from the Tablet-PC. 

6. Remove the display assembly from the Tablet-PC. 




7. Remove the nine screws from securing the palm rest from the bottom of the Tablet-PC. 




8. Turn the Tablet-PC over and remove three screws securing the palm rest to the top of the Tablet-PC. 




9. Remove the palm rest from the Tablet-PC. 



Speaker 

Dell™ Latitude™ XT2 Service Manual 

/:\ WARNI NG: Before working inside your Tablet- PC, read the safety information that shipped with your Tablet- PC. For additional safety best 
practices information, see the Regulatory Compliance Homepage at www.dell.com/ regulatory compliance. 

Removing the Speaker 




1. Follow the procedures in Before Working Inside Your Tablet-PC . 

2. Remove the battery from the Tablet-PC, 

3. Remove the hard drive from the Tablet-PC. 

4. Remove the memory and mini-card cover from the Tablet-PC. 

5. Remove the memory from the Tablet-PC. 

6. Remove the mini-card from the Tablet-PC. 

7. Remove the BIOS chip from the Tablet-PC. 

8. Remove the Bluetooth module from the Tablet-PC. 

9. Remove the hinge cover from the Tablet-PC. 

10. Remove the keyboard from the Tablet-PC. 

11. Remove the coin-cell battery from the Tablet-PC. 

12. Remove the display assembly from the Tablet-PC. 

13. Remove the palm rest from the Tablet-PC. 




14. Disconnect the speaker cable from the system board. 




15. Remove the speaker assembly from the Tablet-PC. 




System Board 

Dell™ Latitude™ XT2 Service Manual 



A 



WARN I NG: Before working inside your Tablet- PC, read the safety information that shipped with your Tablet- PC. For additional safety best 
practices information, see the Regulatory Compliance Homepage at www.dell.com/ regulatory compliance. 



Removing the System Board 




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procedures in Before Working Inside Your Tablet-PC . 

e battery from the Tablet-PC. 

e hard drive from the Tablet-PC. 

e memory and mini-card cover from the Tablet-PC. 

e memory from the Tablet-PC. 

e mini-card from the Tablet-PC. 

e BIOS chip from the Tablet-PC. 

e Bluetooth module from the Tablet-PC. 

e hinge cover from the Tablet-PC. 

e keyboard from the Tablet-PC. 

e coin-cell battery from the Tablet-PC. 

e display assembly from the Tablet-PC. 

e palm rest from the Tablet-PC. 




14. Disconnect the speaker cable from the system board. 




15. Lift the retaining clip on the SATA cable. 




16. Disconnect the SATA cable from the system board. 




17. Lift the retaining clip on the wireless cable connector. 




18. Disconnect the wireless cable connector from the system board. 




19. Remove the one screw securing the system board to the bottom plastic. 




20. Lift the system board up at an angle and remove from the Tablet-PC. 




21. Disconnect the fan cable from the system board connector, then flip the system board over. 




,r-i- •*<••> ■■ «■** 



22. Loosen the four captive screws on the heat sink. 







23. Remove the top section of the heat sink assembly from the system board, then turn the system board over again. 







24. Remove the bottom section of the heat sink assembly. 




Mini-Card 

Dell™ Latitude™ XT2 Service Manual 

• Removing the Mini-Card 

• Replacing the Mini-Card 



/:\ WARNI NG: Before working inside your Tablet- PC, read the safety information that shipped with your Tablet- PC. For additional safety best 
practices information, see the Regulatory Compliance Homepage at www.dell.com/ regulatory compliance. 



Removing the Mini-Card 




1. Follow the procedures in Before Working Inside Your Tablet-PC . 

2. Remove the battery from the Tablet-PC, 

3. Remove the memory and mini-card cover from the Tablet-PC. 




4. Disconnect the two antenna cables from the mini-card. 




5. Use your finger to gently pry the retaining clips back and release the mini-card. 




6. Remove the mini-card from the Tablet-PC at an angle. 



5P 




Replacing the Mini-Card 

/\ CAUTION: The connectors are keyed to ensure correct insertion. If you feel resistance, check the connectors on the card and on the system 
board, and realign the card. 

/"\ CAUTION: To avoid damage to the mini-card, ensure the cables are not under the card when you place the card. 

|£j NOTE: The card slot will be marked by a WLAN silk-screen. Do not install the mini-card into any other card slot. If you are installing a WWAN card, install 
the card in the slot marked by a WWAN silk-screen. 

1. Slide the mini-card into the WLAN connector slot at an angle. 

2. Press the card down to the alignment posts and hold in position. 

3. Reseat the retainer clips that hold the card in position. 

4. Connect the appropriate antenna cables to the card you are installing: 

i If the card has two triangles on the label (white and black), connect the white antenna cable to the connector labeled "main" (white triangle), and 
connect the black antenna cable to the connector labeled "aux" (black triangle). Place the remaining gray cable in the chassis next to holder next 
to the card. 



If the card has three triangles on the label (white, black, and gray), connect the white antenna cable to the white triangle, connect the black 
antenna cable to the black triangle, and connect the gray antenna cable to the gray triangle. 



Ea NOTE: Ensure the cables are tucked into the cable channel. 

5. Replace the memory and mini-card cover on the Tablet-PC. 

6. Replace the battery (see Replacing the Main Battery ). 



Tablet- PC Modes 

Dell™ Latitude™ XT2 Service Manual 

• User Modes 

• Tablet Buttons 

• Tablet-PC Interface 

• Tablet Settings 



Working on Your Tablet- PC 

Dell™ Latitude™ XT2 User's Guide 



Before Working Inside Your Tablet-PC 

Recommended Tools 

Turning Off Your Tablet-PC 

After Working I nside Your Tablet-PC 



Before Working I nside Your Tablet-PC 



Use the following safety guidelines to help protect your Tablet-PC from potential damage and to help to ensure your personal safety. Unless otherwise noted, 
each procedure included in this document assumes that the following conditions exist: 

i You have performed the steps in Working on Your Tablet-PC, 

i You have read the safety information that shipped with your Tablet-PC. 

i A component can be replaced or— if purchased separately-installed by performing the removal procedure in reverse order. 

/:\ WARNI NG: Before working inside your Tablet- PC, read the safety information that shipped with your Tablet- PC. For additional safety best 
practices information, see the Regulatory Compliance Homepage at www.dell.com/ regulatory compliance. 

/\ CAUTI ON: Only a certified service technician should perform repairs on your Tablet-PC. Damage due to servicing that is not authorized by Dell is 
not covered by your warranty. 

/\ CAUTI ON: To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by periodically touching an unpainted metal 
surface, such as a connector on the back of the computer. 

/"\ CAUTI ON: Handle components and cards with care. Do not touch the components or contacts on a card. Hold a card by its edges or by its metal 
mounting bracket. Hold a component such as a processor by its edges, not by its pins. 

/\ CAUTI ON: When you disconnect a cable, pull on its connector or on its pull- tab, not on the cable itself. Some cables have connectors with locking 
tabs; if you are disconnecting this type of cable, press in on the locking tabs before you disconnect the cable. As you pull connectors apart, keep 
them evenly aligned to avoid bending any connector pins. Also, before you connect a cable, ensure that both connectors are correctly oriented 
and aligned. 

^j NOTE: The color of your Tablet-PC and certain components may appear differently than shown in this document. 

To avoid damaging your Tablet-PC, perform the following steps before you begin working inside the Tablet-PC. 

1. Ensure that your work surface is flat and clean to prevent the Tablet-PC cover from being scratched. 

2. Turn off your Tablet-PC (see Turning Off Your Tablet-PC ). 

3. If the Tablet-PC is connected to a docking device (docked) such as the optional Media Base or Battery Slice, undock it. 

/\ CAUTI ON: To disconnect a network cable, first unplug the cable from your Tablet- PC and then unplug the cable from the network device. 

4. Disconnect all network cables from the Tablet-PC. 

5. Disconnect your Tablet-PC and all attached devices from their electrical outlets. 

6. Close the display and turn the Tablet-PC upside-down on a flat work surface. 

/\ CAUTI ON: To avoid damaging the system board, you must remove the main battery before you service the Tablet- PC. 

7. Remove the main battery (see Removing the Main Battery ). 

8. Turn the Tablet-PC top-side up. 

9. Open the display. 

10. Press the power button to ground the system board. 

/\ CAUTI ON: To guard against electrical shock, always unplug your Tablet- PC from the electrical outlet before opening the display. 

,A CAUTION: Before touching anything inside your Tablet- PC, ground yourself by touching an unpainted metal surface, such as the metal at the back 
of the Tablet-PC. While you work, periodically touch an unpainted metal surface to dissipate static electricity, which could harm internal 
components. 

11. Remove any installed ExpressCards or Smart Cards from the appropriate slots. 

12. Remove the hard drive (see Removing the Hard Drive ). 

Recommended Tools 

The procedures in this document may require the following tools: 

Small flat-blade screwdriver 

#0 Phillips screwdriver 

#1 Phillips screwdriver 

Small plastic scribe 

Flash BIOS update program CD 

Turning Off Your Tablet- PC 

/"\ CAUTI ON: To avoid losing data, save and close all open files and exit all open programs before you turn off your Tablet- PC. 

1. Shut down the operating system: 



I n Windows Vista: 

Click Start w , then click the arrow in the lower-right corner of the Start menu as shown below, and then click Shut Down. 



i I n Windows XP: 

Click Starts Turn Off Computers Turn Off. 

The Tablet-PC turns off after the operating system shutdown process is complete. 

2. Ensure that the Tablet-PC and all attached devices are turned off. If your Tablet-PC and attached devices did not automatically turn off when you shut 
down your operating system, press and hold the power button for about 4 seconds to turn them off. 



After Working I nside Your Tablet-PC 

After you complete any replacement procedure, ensure you connect any external devices, cards, and cables before turning on your computer. 

/\ CAUTI ON: To avoid damage to the Tablet-PC, use only the battery designed for this particular Dell computer. Do not use batteries designed for 
other Dell computers. 

1. Connect any external devices, such as a port replicator, battery slice, or media base, and replace any cards, such as an ExpressCard. 

2. Connect any telephone or network cables to your Tablet-PC. 

/\ CAUTI ON: To connect a network cable, first plug the cable into the network device and then plug it into the computer. 

3. Replace the main battery . 

4. Connect your Tablet-PC and all attached devices to their electrical outlets. 

5. Turn on your Tablet-PC.